Area of residence | Percentile | Urinary iodine concentration distributions (µg/L) | ||||
---|---|---|---|---|---|---|
Raw data for day 1 | By the average correction method | By the variance correction method | ||||
Average of days 1 and 2 | Average of days 1, 2 and 3 | Day 1 corrected using 2 replicates | Day 1 corrected using 3 replicates | |||
Urban | Fi | 0.748 | 0.833 | |||
5th | 56.5 | 79.4 | 88.3 | 109.3 | 105.8 | |
10th | 76.7 | 98.4 | 107.1 | 123.2 | 121.7 | |
25th | 117.7 | 131.0 | 139.1 | 145.8 | 148.5 | |
50th | 173.8 | 176.7 | 178.4 | 179.8 | 180.5 | |
75th | 242.3 | 234.0 | 229.7 | 221.7 | 223.4 | |
95th | 362.7 | 338.6 | 329.1 | 300.8 | 305.2 | |
Rural | Fi | 0.744 | 0.828 | |||
5th | 56.4 | 79.9 | 96.5 | 118.8 | 120.0 | |
10th | 75.0 | 101.6 | 116.7 | 134.5 | 135.4 | |
25th | 130.7 | 147.7 | 159.2 | 168.2 | 171.0 | |
50th | 199.7 | 204.8 | 210.6 | 208.9 | 212.7 | |
75th | 287.4 | 277.7 | 275.2 | 262.4 | 265.4 | |
95th | 460.9 | 416.8 | 387.1 | 363.1 | 355.1 |
Fi=Sb/(Sb+Sw/di), where Sb is the SD between subjects, Sw is SD within subjects, and di is the number of observations available for each subject.